An angle bracket is bent in a v-bending operation on a press brake from a flat blank that is 4.0 in long by 1.5 in wide by 5/32 in thick. the 90bend is made in the middle of the 4-in length, so that the bend axis is 1.5 inlong.

(a) determine the dimensions of the two equal sides that will result after the bend, if the bend radius = 3/16 in. the sides should be measured to the beginning of the bend radius.

(b) also, determine the length of the two equal sides assuming the sheet metal did not stretch.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Along 8-cm diameter steam pipe whose external surface temperature is 900c connects two buildings. the pipe is exposed to ambient air at 70c with a wind speed of 50 km/hr blowing across the pipe. determine the heat loss from the pipe per unit length. (b) air at 500c enters a section of a rectangular duct (15 cm x 20 cm) at an average velocity of 7 m/s. if the walls of the duct are maintained at 100c. a) the length of the tube for an exit temperature of the air to be 40 0c. b)the rate of heat transfer from the air. c) the fan power needed to overcome the pressure drop in this section of the duct.